<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Document</title>
</head>

<body>
<h1>登录页面</h1>
<input name="username" placeholder="用户名">
<a href="http">跳转到Http Servlet</a>
</body>
</html>